Bloomberg reported that the broadest equity rally on record will pick up speed through year end and lift the S&P 500 Index to the biggest annual increase in 16 years, if history is any guide.

Bloomberg notes that shares have climbed in the final two months 82% of the time since 1928 when the benchmark gauge advanced at least 10% through October, data compiled by S&P and Bloomberg show.

Bloomberg said the last time the S&P 500 recorded bigger returns for the first 10 months was in 1997, when stocks were in the middle of a bull market in which the index quadrupled over eight years.

To read the entire Bloomberg story, click here.